Assembling apparatus



g 7, 1951 J. c. HROCH, JR 2,563,468

ASSEMBLING APPARATUS Filed Jan. 24, 1945 5 Sheets-Sheet l flTTOE VEYAug. 7, 1951 J. c. HRQCH, JR

ASSEMBLING APPARATUS n I Filed Jan. 24, 1945 5 Sheets-Sheet 2 NQ \N \AL3) k W mH E m N m W? T W. A W M & A A J WW/ R my 5 M Wm. A QR N r 4 MAug. 7, 1951 J. c. HRQCH, JR. 2,563,468

ASSEMBLING APPARATUS Filed Jan. 24, 1945 5 Sheets-Sheet 5 3 -1. =5 MM?8; g 5" Q iiiii s I "Hun .l r Y INVENTOE JCff/eoca; JR. BY 13' A TTOEA/EY' Aug. 7, 1951 J. c. HROCH, JR

ASSEMBLING APPARATUS 5 Sheets-Sheet 4 Filed Jan. 24, 1945 m/vE/vro/eJcbeoch; .142 5) 4,4, ,8. 41. g Y ATTORNEY Aug. 7, 1951 J. c. HROCH, JR

ASSEMBLING APPARATUS 5 Sheets-Sheet 5 Filed Jan. 24, 1945 QN Q EPatented Aug. 7, 1951 2,563,468 ASSEMBLING APPARATUS ames Hr ch, Jr-,.Gi 11-, assicnor townieern. le ric Co mpan Inc rpor ted, New York,

N 1C, a. corporation .of New York Application J anuary24, 1945', SerialNo.;574,4 3'1 3 Cla ms. (Cl. 23 =2 -l.9)

This invention relates to an, assembling apparatus and more particularlytoapparatus for inserting circular straps into anode members.

It is essential that the circular straps should be accurately locatedthe anode members which. are. used in ultra-hi h frequency radiodetection devices. In view of thesmall size and delicate structure ofthe rings and anode memer. this is a very di ficult p ration- .An.object of the presen invention i o pro vide an. apparatus for accuratelyand effe tiv ly assembling parts.

In accordance with one embodiment or this invention, an apparatus isprovided having a plurality of concentric sleeves forming a nes forreceiving and positioning a pair of circular straps in concentricrelation. The straps are provided with a plurality of axially extendingtabs which, when the straps are in position in the nest, may be engagedby a gauge and moved to turn the straps about their axis to apredetermined position after which the gauge is removed and the anodemember is an ularly and axially alinged with the straps with the aid ofsuitable guide means and is forced downwardly onto the straps to receiveand grip the tabs in annular grooves in the anode member. The

sleeves forming the side walls of the nest are movable and maybeactuated to disengage the strip engaging portions thereof from the strapafter which the anode member with the assembled straps thereinmay beremoved from the apparatus.

Other objects of the present invention will be apparent from thefollowing detailed description taken in conjunction with theaccompanying drawings illustrating a preferred embodiment of theinvention, in which Fig. 1 is a fragmentary plan View of a portion ofthe apparatus;

Figs. 2 and .3 are enlarged fra mentary views in perspective showing twoplates and the recesses therein forming apart of thebody of theapparatus Fig. 4 is a vertical, longitudinal, sectional view of theapparatus taken along the line 4-4 of Fig. 1 and showing the fixturemoved forward into a position to cooperate with a plunger of a press andshowing the anode member in dotted lines thereon;

Fig. 5 is a fragmentary vertical sectional view taken on the line 5-5 ofFig. .1 and illustrating a latch for cooperating with a sleeve actuatinmember;

Figs. 6 and 7 are enlarged iragmentary, plan '2 sec ions a n onthe finesand re pe tivelno F e- Fig. 8 is a vertical transverse sectional View ofthe apparatus taken on the line 8.=8 of Fi 1 and sh n he anod me b r iert ca al e men-t with the assembli g fixture;

.Fig- 9 i a pers ect ve Vi w a fixed sleeve tor suppo ing a c cular tap;

his 10 s a pe s ec ve ew o a movable s ee e for engag n he per pheralsuria e o circular strap;

Fig. 1.1, is a view in persp ctiv with arts bro en away. ofa loadin devc for a in the c r u ar s raps in the a embl n fix re;

Fig. 12 is an enlarged vertical section of a por tion of e. sem linefitu e h in h load.- i g device in pos i n th eon;

g .3. is a lan. view o a sens m m er or use in turni g the s raps. topos o h ta t re n; 1 i

Fig. 14 is a side elevational view of the gauge shown in Fig.13;-

Fig. 15 is an enlarged fragmentary view, perspective, showing t e loweror ion i he ca se; 7

i Fig- 16 is. a fragmen ar en a ged vert cal see tional view; shQwingthe gauge in place on the fixture and en ag ng th raps;

F ei7 s. an enlar d fra menta y view o the strap positioning nest withthe straps in place therein and showing the locating gauge en a in hetab on he tr s showing the strap positioning sleeves disengaged from thestraps and latched in their retracted position;

Fig. 22 is a perspective view of a circular strap,

:and

Fig. 23 is a plan view of the anode with the straps in assembledposition therein.

Referring o t e ra in s and pa icul ly to tries. 21 2 and 2 here s shownan an de member 2. having, assembled herein two o ircula st szfi and 2.on o which is .accurately align the rings shown in perspective in Fig.22. The anode member 25 is cylindrical in form, having fiat ends, and isprovided with a central aperture 29 therethrough around which aredisposed a series of smaller, equally spaced, parallel apertures 36. Theapertures 36 are connected to the central aperture 29 by radial slots 3|which slots define a series of radially projecting tongues 32. on eitherend, the anode member is provided with a concentric annular recess 33 ofrectangular shape in cross section, the bottom of which is providedwithspaced concentric grooves 34 and 35. The ring or circular strap 26 isformed from a thin strip cut to the proper shape and bent to circularform with its ends abutting, and is provided with a series of equallyspaced projecting tabs 36. The straps with the anode member 25 sothatthe tabs 36 fit into the grooves 33 and 34 and are tightly grippedtherein, thetabs 36 of one strap engaging in grooves 34 in alternatetongues 32 and the tabs of the other strap engaging in grooves 35 inalternate tongues not engaged by the tabs of the first ring.

The anode 25and the straps 26 and 21 are assembled in the apparatus,embodying the present invention, shown on an enlarged scale in thevarious drawings (Figs. 1, 4 and 8). The apparatus comprises a fixture46 (Fig. 4) movably mounted on a bed 4| and guided for reciprocationthereon by guide members 42 and limited in its forward and rearwardmovement by stop mem: bers 43 and 44, respectively. The body of thefixture 46 comprises a block 46 and plates 41,

48 and 49, the parts being secured together in dowel pins 56 and capFigs. 1 and 4. A handle 52 is fixed to the block 46 to move the fixture46.

To receive and position the straps 26 and 21, the fixture 46 is providedwith a nest 53 (Figs. 1,12, 1'1, 18 and 21) formed of a series ofconcentric telescoping sleeves 55, 56, 51, 58 and 59, the sleeves 56 and58 being fixed and the sleeves assembled relation by screws as shown in26 and 21 are assembled to a sleeve actuating member 86. The

provide a plurality of extensions or legs 12 which pass through radialslots 13 in the plate 48 and between the ends of the shoulder portions66 on the sleeves 56 and 58. The lower ends of the legs 12 of thesleeves 51 and 59 are provided with shoulders so as to engage the legsof the adjacent sleeves, the sleeves being riveted together by means ofrivets passing through the lower ends of the legs, as shown in Fig. 21.The lower ends of the legs 12 of the outer sleeve 55 are provided withshoulders 16 which are engaged by the notched ends of rods 11. The rods11 are reciprocally mounted in aligned apertures 18 and 19 in plates 41and 48, respectively, and are attached member 86 is movable verticallyin a recess 63 (Fig. 8) f in the block 46 and is urged upwardly by aspring 7 85 bearing against the underneath side thereof 55, 51 and 59being relatively movable thereto.

The sleeves surround an lower portion otwhich is secured in apertures 62and 63 in plates 48 and 41, respectively. The series of sleeves fitswithin an aperture64 in the plate 49 which aperture extends through aboss 65 extending upwardly from the plate 49, the boss being providedwith a flat surface 66 flush with the top edges of the fixed sleeves 56and 58. The inner fixed sleeve 58 is provided with shoulder portion66-66 (Fig. 9) at its lower end and is telescoped within which islikewise provided with similar shoulder portions 66 at its lower end.The lower ends of the sleeves 56 and 58 are sweated into an annulargroove 69 in the plate 48, as illustrated in Figs. 2, 7,12 and 21.

The upper ends of the movable sleeves 55, 51 and 59 project above theends of the fixed sleeves 56 and 58 a distance equal to the overallheight of the rings 26 M21 including the tabs 36 and together with the.top edges of the fixed sleeves 56 and 58 form the nest 53 having twoconcentric circular pockets or recesses 16 and 1| for receiving andpositioning the straps 26 and 21, respectively (see Figs. 12, 1'1, 18and 19). The nest 53 with the straps 26 and 21 in place therein willfitinto the annular recess 26 and 21 with the grooves 34 and 35,respectively, of the anode when the anode is applied, as illustrated inFig. 19.

The lower part of the sleeves are out out to aligning post 6|, thetheouter .fixed sleeve 56 33 of the anode and and supported on a threadedmember 86. The member 86 has a reduced circular portion 88 projectingdownwardly into a recess 89 in the member 86 for guiding the member 86.A pair of arms 9| extend outwardly from the member 86 through slots 92in the block 46, and are adapted to be engaged by the operator to movethe member 86 and the movable sleeves 55, 51 and 59 downwardly. Themovable sleeves may be moved downwardly to an intermediate positionwhere the sleeves are partly disengaged from the straps 26 and 21 and toa position where they are fully disengaged from the straps. A latch 95is provided to retain the sleeves in the partly disengaged or the fullydisengaged positions. The latch 95 is slidably mounted in a recess inthe block 46 and is urged toward the right as viewed in Fig. 4 by aspring 96 which is attached at one end to a stud 91 on the latch and atthe other end to a pin 98 secured in the block 46. The latch 95 isshaped with a forked end (Fig. 1) and engages the member 86 at points|66-|66 and is undercut at |62 (Fig. 4) to form a latching surface whichwill engage the top surface of the member 86 when ,the sleeves aredepressed to the intermediate position and the latch member 95 moved'forward. The forward movement of the latch 95 is arrested by theengagement of an oifset portion I63 thereon with the side of one of thearms 9| (Figs. 1 and 5), after which the arms 9| may be moved downwardluntil the latch 95 moves further forward and the bottom surface of theonset portion I63 engages the upper surface of the lever 9| and latchesthe member 86 and the movable sleeves in the fully disengaged positionas shown in Fig. 21. A rib or projection I65 on the block 46 (Fig. 1)limits the forward movement of the latch member 95 when the arms 9| arefully depressed. The latch 95 has an upturned handle portion I64, whichmay be engaged by the operator to retract the latch. V i A pair oflocating or aligning pins |61--|61 extend upwardly from the boss 66 andare of such size and are so located thereon as .to fit into a pair ofapertures 36 in an anode member 25 when the anode member is appliedthereon and to angularly position the anode member accurately relativeto the tabs 36 on the rings 26 and 21. To load or feed a strap into thenest 53 of the fixture, a pair of loading devices ||6 are provided, onefor feeding the straps 21.

one for feeding the straps 26 and a larger The loading devices 6 areidentical except for the size, the

in: a plurality of straps 26. .Theistraps are imserted into thetube III'one at atime with the tabs 36 directed upwardly and form- :a stack ofstraps restingone on .top of another andmaintained in place byfrictional engagement of the strap with the walls of the tube II I. Apiston H5, connected to a piston rodI I6 and a handle H1, is adapted toengage the uppermost strap 26 and, when moved downwardly-to apply aforce tothestackof straps to eject the lowermost strap from the tube.Aifiange H8 .is formed on the lower end of the tube III and is providedwith a pair of'apertures I Iflpositionedsoas. .to cooperate with thealigning pinsIIl'I on the fixture maligning the loading device with thenest 53 when the loading device .is appliedthereto, as illustrated .inFig. 12. The loading device, when applied to the fixture as .shown'inFig. 12, rests on the top edges of the sleeves 55 and .5! and thelowermost strap 26 in themagazine I II is inalignmentwith the circularrecess Til-of the nest 5-3 and .may be ejected from the tube III intothe recess by .a

downward movement of the piston H5. The loading device I II! is removedafter the strap 26 has been ejected and the device for loading thestraps 21 maybeapplied and astarp 21 ejected therefrom intothestraprecess 71 of the nest 53.

When the straps 26 and 21 are loaded in the positioning pockets I0 andH, respectively, the upwardly extendingtabs 36 thereon are arrangedinrandom position and in .orderto properly align the tabs on one ringwith respect to the tabs on the otherring, and with respect to thefixture the straps may be :rotatedabout their centers while in therecess I0 and II and for this purpose a strap turning gauge I20 is used(see Figs. 13, 14,

and 16).

The gauge I20 comprises a cylindrical body member I 2I having a handleI22 and, at its lower end is provided with apair'of axially projectingdiametrically opposed lugs I24 equally spaced from the center and asecond pair of diametrically opposed lugs I25 equally spaced from thecenter and angularly displaced from the .lugs I 24. The lugs I25 areformed integral with a cylindrical insert I26 slidably mounted forrelative vertical movement in a bore I21 of the member I2! and normallyurged downwardly by a spring I28 as viewed in Fig. 14. .The insert I26is connected to the body member I ZI by a pin I36 which passes through aslot I3I in the insert, the

arrangement permitting the relative upward movement of the insert I26while the gauge is being applied to the straps 26 and 21 and the fixture46.

to receive the post 6| and is used for aligning the gauge I20 with thestraps 26 and 21 in the nest 53. A foot I24 projects from the bottom ofthe gauge and is adapted to rest on the surface 66 of the boss 65 tosupport the gauge at the proper level during the use thereof, as shownin Fig. 16. The lower end of the gauge is .cut away at I to provideclearancefor the pins I61 and to permit a limited turning movement ofthe gauge.

The lugs I24 are adapted to fit into the recess II of the nest 53 andfit between and engage a pair of tabs 36 on 'thestrap 21 and the lugsI25 are adapted to fit into the recess 10 and fit between and engage apair of tabs 36 on the strap 26 when the gauge H0 'is applied thereto asillustrated in Fig. 16. In applying the gauge I2I,

'the lugs I24 thereon will seat in the recess ill and engage the strapZ'Land it maybe necessary A centrally located recess I32 is I, formed inthe insert I26 and is of a size sufficient to turn the gaugeand thestrap 21 before the lugs which may have been displaced upwardly, seatinthe recess 10. and-engage the strap 26. The gauge Iw,,,=after the strapsare angularly positioned relative to each other therein, may then beturned to properly position the straps with respect to the fixture 40which condition is brought aboutwhen a notch I36 (Fig. 15) formed inalower partof thegauge is in alignment with the end I31 of a tab locatinggauge I 33 (Fig. 1).

The locating gauge I38- (Figs. 1, 8, l7 and 1.8). is slidably mounted ina slot I39 on the plate 49 of the fixture 4D and is retained therein, bya shouldered screw I43 passing through aslot I42 in the gauge. The gaugeI38 is movable toward and away from the post 6! asindicated in Fig.1infull and dotted lines and is provided with a handle I43 for manuallyimparting movement thereto. The forward part of the gauge I38 isreducedin vertical thickness and is rovided with converging side walls I44forming the end I3! which is adapted to fit into the notch I36 andposition the gauge I26 in the correct angular relation to the fixture46. The end I31 of the gauge is also slotted at I46 to receive a tab 36therein. A portion of the sleeves 55, 5! and 59 are cut away at I48 asshown in Figs. 10, 17 and 16 to provide clearance for the end I31 ofthegauge I38 when the gauge is moved into the position shownin Fig. 1.7.

When the turning gauge I26 is removed, the rings 26 and 2'1 are locatedso that the tabs 36 thereon areapproximatelyin the correct angularposition 3111313111 order to check the location of the tabs, and ifnecessary to more accurately position the tabs 36, the gauge member I38isused. When the gauge I36 is moved to the left as shown in Figs 17 and18, the end I3! engages a tab 36 on the ring '26 and receives it in theslot [46 to accurately position the strap 26, and the conj'verging wallsI44 of the gauge I38 engage the vertical end walls of two adjacenttabs36 on the strap 21to accurately position the strap 21.

.After the straps 2-6 and 21 have been accurately positioned by theactuation of the gauge [.38

operation which is to assemble the anode. member thereon. This isaccomplished by positioning the anode member above the nest 53 andaligning the aperture 26 thereof with the post 6i and a pair ofapertures 36 with the pins I01 and lowering the. anode until it engagesand is supported by the upper edges of the nest 53, as indicated in Fig..19. Portions of the movable sleeves forming the nest 53 and the rings26 and 27 positioned therein, fit .into the annular recess 33 in theanode member and engage the bottom face thereof and the nest accuratelyaligns the rings 26 and 21 with the grooves 34 and 35, respectively. Thefixture 46 is moved forward to the position shown in Fig. 4 and theplunger I50 of the press I5I is actuated to engage the anode member 25and move it down until its lower face engages the face 66 of the boss65. This downward movement of the anode member will cause the tabs 36 ofthe rings 26 and 21 to movexinto the grooves 34 and 35 and seat againstthe bottom thereof and be tightly engaged thereby. 'The movable sleeves55, 51 and 59 will be moveddownwardly by the downward movement of theanode member to the position shown 'in Fig. 20 and will be latched inthis position "bythe surface I02 of *thelatoh port engageable with 95.The plunger I50 of the press is raised and the fixture 40 is moved to arearward position and the handles 9| are depressed to move the sleeves55, 51 and 59 downwardly to the position shown in Fig. 21 where they areentirely disengaged from the rings 25 and 21 and in which position thesleeves are latched by the portion 103 of the latch 95. The rings 26 and21 are thus accurately and firmly assembled in the anode member 25 andthe assembly may be removed from the fixture by an upward movementthereof.

What is claimed is:

1. An assembling apparatus for inserting a ring into a recessed member,comprising means including a surface engageable with an end face of thering for supporting said ring, circular .means yieldably mounted on thesupporting means for engaging a peripheral portion of said ring toposition said ring on said supporting means, said ring positioning meansbeing engageable by the recessed member and being movable relatively tosaid supporting means in a path parallel to the axis of the ring topermit the disengagement thereof from the ring, and means for guidingsaid recessed member and said ring into assembled position.

2. An assembling apparatus for inserting a ring into a recessed member,comprising means including a surface engageable with an end face of thering for supporting said ring, circular means for engaging a peripheralportion of said ring to position said ring on said supporting means,said ring positioning means being engageable by the recessed member andbeing movable perpendicularly and relatively to the supporting surfaceof the supporting means to permit the disengagement thereof from thering, means for guiding said recessed member and said ring intoassembled position, and yieldable means for holding said ringpositioning means in the ring engaging position.

3. An assembling apparatus for inserting a ring into a recessed member,comprising means including a surface engageable with an end face of thering for supporting said ring, circular means for engaging a peripheralportion of said ring to position said ring on said supporting means,said ring positioning means being engageable by the recessed member andbeing movable perpendicularly and relatively to the supporting surfaceof the supporting means to permit the disengagement thereof from thering, means for guiding said recessed member and said ring intoassembled position, yieldable means for holding said ring positioningmeans in the ring engaging position, and means for disengaging said ringpositioning means from said ring.

4. An 'assembling'apparatus for inserting a ring into a recessed member,comprising a supan end face of the ring for supporting said ring,circular means for engaging a peripheral portion of said ring toposition said ring on said support, said ring positioning means beingengageable by the recessed member and being movable relatively to saidsupport in a path parallel to the axis of the ring to permit thedisengagement thereof from the ring, means for guiding said recessedmember and said ring into assembled position, resilient means forholding said movable ring positioning means in the ring engagingposition, means for .disengaging said ring positioning means from saidring, and means for latching said ring positioning means in saiddisengaged position.

- 5. An assembling apparatus for assembling a ring and a recessedmember, comprising a support engageable with an end face of a ring forsupporting said ring, movable means for engaging a circumferentialportion of said ring to position said ring on said supporting means,means for guiding said member into engagement with said ring, said ringpositioning means being engageable by and partially displaced from saidring by said member during the assembling operation, means forcompletely disengaging the ring positioning means from said ring, andmeans for latching said positioning means in said partially displacedand said fully displaced position.

6. An assembling apparatus for assembling a ring and an anode member,comprising a support for said ring, a plurality of movable sleeves forengaging and positioning said ring on said support, said sleeves beingmovable to permit the disengagement thereof from the ring, resilientmeans associated with said sleeves for moving said sleeves into ringengaging position and means for latching said sleeves in said disengagedposition.

7 An assembling apparatus for inserting a plurality of rings into ananode member having concentrically arranged annular grooves therein toreceive said rings, said apparatus comprising means for supporting saidrings, a plurality of movable concentric sleeves for engaging the innerand outer peripheral portions of said rings for positioning said ringson said supporting means in concentric relation to each other, saidsleeves being movable to permit the disengagement thereof from saidrings, resilient means associated with said sleeves for moving saidsleeves into ring engaging position, means for disengaging said sleevesfrom said rings, and means for latching said sleeves in a plurality ofpositions.

8. An assembling apparatus for simultaneously inserting a plurality ofrings into an anode having annular grooves concentrically arrangedtherein to receive said rings, said apparatus comprising means forengaging one end of said rings to support same, means for engaging thecircumferential portion of said rings to position same on saidsupporting means in concentric relation to each other, said ringsupporting means and said ring positioning means being relativelymovable whereby the ring positioning means may be disengaged from therings, means for coaxially aligning said anode member and said rings,and means for effecting a relative axial movement between the anode andthe rings to force the rings simultaneously into gripping engagementwith said anode.

9. In an assembling apparatus, a support engageable with an end face ofeach of a plurality of annular parts for supporting the parts, aplurality of concentric circular members normally engageable with theinner and outer peripheries of the annular parts to position the partsin concentric relation to each other on the support, said circularmembers being movable in a direction toward the support to permitdisengagement thereof from the annular parts and being engageable andmovable by a recessed part to be assembled with the annular part, andresilient means to move the circular members into their part-engagingposition.

10. In an assembling apparatus, a support having a surface engageablewith an end face of each of a plurality of annular parts, a plurality ofconcentric circular members normally enageable with the inner and outerperipheries of the annular parts to position the parts in concentricrelation to each other on the support, said circular members beingmovable in a direction toward the support to permit disengagementthereof from the annular parts and being engageable and movable by arecessed part to be assembled therewith, resilient means to move thecircular members into their part-engaging position, and guide means foraligning-and guiding the recessed part into assembled relation with theannular part.

11. In an assembling apparatus, a support having a surface engageablewith an end face of each of a plurality of annular parts, a plurality ofconcentric circular members normally engageable With the inner and outerperipheries of the annular parts to position the parts in concentricrelation to each other on the support, said circular members beingmovable in a direction toward the support to permit disengagementthereof from the annular parts and being engageable and movable by arecessed part to be assembled therewith, resilient means to move thecircular members into their part-engaging position, guide means foraligning and guiding the recessed part into assembled relation with theannular parts, and means for latching the circular member in saiddisengaged position.

12. An assembling apparatus for inserting a plurality of rings havingaxially projecting tabs thereon into a part having concentric annulargrooves therein for receiving said rings, said apparatus comprising asupport having a surface engageable with end faces of a plurality ofrings, a plurality of movable concentric circular members normallyengageable with the inner and outer peripheries of the rings to positionthe rings in concentric relation to each other on the support, saidcircular members being movable to permit disengagement thereof from therings, a gage member slidably mounted on the support for engaging thetabs on said rings to position the rings angularly on said support, andmeans for angularly and coaxially aligning said part with said rings andfor guiding the part into assembled relation with the rings.

13. An assembling apparatus comprising a support having a surfaceengageable with end faces of a plurality of rings provided With axiallyprojecting tabs thereon for supporting said rings, a plurality ofconcentric circular members for engaging circumferential portions ofsaid'rings to position the rings in concentric relation to each other onthe support, said circular positioning members being mounted on thesupport for movement relative thereto to permit disengagement thereoffrom the rings, a gage member movably mounted on the support forengaging the tabs on said rings to locate the rings in a predeterminedangular position on the support, guide means cooperatively engageablewith an annularly grooved part to be assembled with the rings forangularly and coaxially aligning the part relative to the rings and forguiding the part towards the rings, and means for eifecting a relativeaxial movement between the part and the rings to force the ringssimultaneously into gripping engagement with the part.

JAMES C. HROCH, JR.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,793,285 Hambleton et a1. Feb.17, 1931 2,422,549 Hogin June 17, 1947

